MLK-21054-3 pinctrl: Enable imx8mq support

Copy pin header from rel_imx_4.14.98_2.0.0_ga_rc1 and enable
compilation. The C code of the driver was already accepted in v4.19 in
an acceptable form so we use that.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>

drivers/pinctrl/freescale/Kconfig

@@ -160,8 +160,9 @@ config PINCTRL_IMX8QXP
 
 config PINCTRL_IMX8MQ
 	bool "IMX8MQ pinctrl driver"
-	depends on SOC_IMX8MQ
+	depends on ARCH_FSL_IMX8MQ
 	select PINCTRL_IMX
+	select PINCTRL_IMX_MEMMAP
 	help
 	  Say Y here to enable the imx8mq pinctrl driver